New IQI for digital radiography

Masako Mori, Toshibumi Kashiwa, Yoshimitsu Aoki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Radiographic Test (RT) has been widely used in industries to detect inner defects of welded structures or any other significant components. Especially in the nuclear industry, film radiography is the dominant and standardized procedure in performing radiographic testing. Lately emphasis is on digital radiography. One of the most serious concerns for digitization is the lack of image resolution standardizing device like resolution gauge which would determine imaging parameters such as modular transfer function (MTF). This paper proposes line pair type image quality indicator (IQI) corresponding to the current IQIs for both hole and wire type. The advantage of this IQI is to enable easier calibration of testing conditions and quantification of digital RT image quality with required MTF that should be clearly defined in the examination procedures. Furthermore, to acquire "resolution-ensured" digital image of existing RT films, we developed line pair type standardization film. Prototypes of line pair type IQI and line pair type standardization film are currently in the validation study and trial implementing process. These results are also reported in this paper.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Pages453-456
Number of pages4
Volume1
DOIs
Publication statusPublished - 2008
Externally publishedYes
Event2007 ASME Pressure Vessels and Piping Conference, PVP 2007 - San Antonio, TX, United States
Duration: 2007 Jul 222007 Jul 26

Other

Other2007 ASME Pressure Vessels and Piping Conference, PVP 2007
CountryUnited States
CitySan Antonio, TX
Period07/7/2207/7/26

Fingerprint

Radiography
Image quality
Standardization
Transfer functions
Nuclear industry
Analog to digital conversion
Optical resolving power
Testing
Image resolution
Gages
Wire
Calibration
Imaging techniques
Defects
Industry

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Mori, M., Kashiwa, T., & Aoki, Y. (2008). New IQI for digital radiography. In American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP (Vol. 1, pp. 453-456) https://doi.org/10.1115/PVP2007-26188

New IQI for digital radiography. / Mori, Masako; Kashiwa, Toshibumi; Aoki, Yoshimitsu.

American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. Vol. 1 2008. p. 453-456.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mori, M, Kashiwa, T & Aoki, Y 2008, New IQI for digital radiography. in American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. vol. 1, pp. 453-456, 2007 ASME Pressure Vessels and Piping Conference, PVP 2007, San Antonio, TX, United States, 07/7/22. https://doi.org/10.1115/PVP2007-26188
Mori M, Kashiwa T, Aoki Y. New IQI for digital radiography. In American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. Vol. 1. 2008. p. 453-456 https://doi.org/10.1115/PVP2007-26188
Mori, Masako ; Kashiwa, Toshibumi ; Aoki, Yoshimitsu. / New IQI for digital radiography. American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. Vol. 1 2008. pp. 453-456
@inproceedings{41dd47d0ff734590a85fde7c49473dd8,
title = "New IQI for digital radiography",
abstract = "Radiographic Test (RT) has been widely used in industries to detect inner defects of welded structures or any other significant components. Especially in the nuclear industry, film radiography is the dominant and standardized procedure in performing radiographic testing. Lately emphasis is on digital radiography. One of the most serious concerns for digitization is the lack of image resolution standardizing device like resolution gauge which would determine imaging parameters such as modular transfer function (MTF). This paper proposes line pair type image quality indicator (IQI) corresponding to the current IQIs for both hole and wire type. The advantage of this IQI is to enable easier calibration of testing conditions and quantification of digital RT image quality with required MTF that should be clearly defined in the examination procedures. Furthermore, to acquire {"}resolution-ensured{"} digital image of existing RT films, we developed line pair type standardization film. Prototypes of line pair type IQI and line pair type standardization film are currently in the validation study and trial implementing process. These results are also reported in this paper.",
author = "Masako Mori and Toshibumi Kashiwa and Yoshimitsu Aoki",
year = "2008",
doi = "10.1115/PVP2007-26188",
language = "English",
isbn = "0791842797",
volume = "1",
pages = "453--456",
booktitle = "American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP",

}

TY - GEN

T1 - New IQI for digital radiography

AU - Mori, Masako

AU - Kashiwa, Toshibumi

AU - Aoki, Yoshimitsu

PY - 2008

Y1 - 2008

N2 - Radiographic Test (RT) has been widely used in industries to detect inner defects of welded structures or any other significant components. Especially in the nuclear industry, film radiography is the dominant and standardized procedure in performing radiographic testing. Lately emphasis is on digital radiography. One of the most serious concerns for digitization is the lack of image resolution standardizing device like resolution gauge which would determine imaging parameters such as modular transfer function (MTF). This paper proposes line pair type image quality indicator (IQI) corresponding to the current IQIs for both hole and wire type. The advantage of this IQI is to enable easier calibration of testing conditions and quantification of digital RT image quality with required MTF that should be clearly defined in the examination procedures. Furthermore, to acquire "resolution-ensured" digital image of existing RT films, we developed line pair type standardization film. Prototypes of line pair type IQI and line pair type standardization film are currently in the validation study and trial implementing process. These results are also reported in this paper.

AB - Radiographic Test (RT) has been widely used in industries to detect inner defects of welded structures or any other significant components. Especially in the nuclear industry, film radiography is the dominant and standardized procedure in performing radiographic testing. Lately emphasis is on digital radiography. One of the most serious concerns for digitization is the lack of image resolution standardizing device like resolution gauge which would determine imaging parameters such as modular transfer function (MTF). This paper proposes line pair type image quality indicator (IQI) corresponding to the current IQIs for both hole and wire type. The advantage of this IQI is to enable easier calibration of testing conditions and quantification of digital RT image quality with required MTF that should be clearly defined in the examination procedures. Furthermore, to acquire "resolution-ensured" digital image of existing RT films, we developed line pair type standardization film. Prototypes of line pair type IQI and line pair type standardization film are currently in the validation study and trial implementing process. These results are also reported in this paper.

UR - http://www.scopus.com/inward/record.url?scp=43449086120&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=43449086120&partnerID=8YFLogxK

U2 - 10.1115/PVP2007-26188

DO - 10.1115/PVP2007-26188

M3 - Conference contribution

AN - SCOPUS:43449086120

SN - 0791842797

SN - 9780791842799

VL - 1

SP - 453

EP - 456

BT - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP

ER -